资源简介 play in the snow to enjoy the happiness of winter.But in southern China,temperature seldomfalls below 0C.Snow seldom falls,and the rivers do not freeze.Heating()is important for northern Chinese.People often wear hats,searfs,downjackets and gloves outside.But when they return home,they only need a T-shirt.In southernChina however,people don't enjoy heating.They often use air conditioners()or electricheaters to keep themselves warm during winter.21.Qinling-Huaihe LineA.runs from the south to the northB.got its name in 1980C.is between northern and southern ChinaD.divides China into five parts22.When does the coldest weather come in northern China A.In December.B.In November.C.In February.D.In January23.Which difference is Paragraph 3 about A.The temperatures.B.The snow.C.The rain.D.The clothes.24.Which one of following pictures is "scarfs" 25.What's the article mainly(主要)about A.Winter in northern and southern ChinaB.Differences in weather in many citiesC.How people spend winter in the north.D.How people spend winter in the southCDo you have a smart phone It's very useful-we can use it to take photos,play gamesor study.But it can also cause some problems().A large number of people spend over 4hours a day using their phones-that's 1,460 hours a year,from a study by Thames.If we usesmart phones too much,they can become harmful(有害的),Using smart phones too much can be bad for students'study.What about sleep Manystudies show that long smart phone time is bad for students'sleep,too.It can make it hard tofall asleep and even harder to wake up in the morning.To find out if using smart phones too much causes poor sleep,scientists asked 1,043British students of 18~30 years old to finish two questionnaires ()And they find thatusing smart phones too much brings people poor sleep.Almost 70%of the students who usesmart phones too much have poor sleep.七年级英语试题第4页(共8页) 展开更多...... 收起↑ 资源预览